Home / 10,205.37-15,308.63-3,186.35

Finding the Fourth Proportional to 10,205.37, 15,308.63 and 3,186.35

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Solution

The fourth proportional to 10,205.37, 15,308.63 and 3,186.35 is: 4,779.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,205.37 : 15,308.63 = 3,186.35 : x
  2. Step 2: Convert to fraction form
    10,205.37/15,308.63 = 3,186.35/x
  3. Step 3: Cross multiply
    10,205.37x = 15,308.63 × 3,186.35
  4. Step 4: Simplify right side
    10,205.37x = 48,778,711.71
  5. Step 5: Solve for x
    x = 48,778,711.71/10,205.37
  6. Step 6: Final answer
    x = 4,779.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.